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Fair Value Measurements (Estimated Fair Values Of Financial Instruments Not Recorded At Fair Value In Their Entirety On A Recurring Basis) (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Cash and due from banks |  | $ 719 | $ 1,443
Interest-bearing deposits with banks |  | 4,093 | 8,059
Total deposits |  | 62,459 | 66,762
Medium- and long-term debt |  | 7,112 | 6,206
Loans recorded at fair value |  | 51,164 | 51,425
Carrying Amount |  |  |
Cash and due from banks |  | 719 | 1,443
Interest-bearing deposits with banks |  | 4,093 | 8,059
Other short-term investments |  | 21 | 24
Total loans | [1] | 51,164 | 51,425
Demand Deposit Accounts |  | 55,785 | 58,476
Time Deposits |  | 6,674 | 8,286
Total deposits |  | 62,459 | 66,762
Medium- and long-term debt |  | 7,112 | 6,206
Short-term borrowings |  | 1,250 | 3,565
Credit-related financial instruments |  | (63) | (72)
Estimated Fair Value |  |  |
Cash and due from banks |  | 719 | 1,443
Interest-bearing deposits with banks |  | 4,093 | 8,059
Other short-term investments |  | 21 | 24
Total loans | [1] | 50,412 | 50,633
Demand Deposit Accounts |  | 55,785 | 58,476
Time Deposits |  | 6,682 | 8,391
Total deposits |  | 62,467 | 66,867
Medium- and long-term debt |  | 7,190 | 6,207
Short-term borrowings |  | 1,250 | 3,565
Credit-related financial instruments |  | (63) | (72)
Level 1 | Estimated Fair Value |  |  |
Cash and due from banks |  | 719 | 1,443
Interest-bearing deposits with banks |  | 4,093 | 8,059
Other short-term investments |  | 21 | 24
Total loans | [1] | 0 | 0
Demand Deposit Accounts |  | 0 | 0
Time Deposits |  | 0 | 0
Total deposits |  | 0 | 0
Medium- and long-term debt |  | 0 | 0
Short-term borrowings |  | 1,250 | 3,565
Credit-related financial instruments |  | 0 | 0
Level 2 | Estimated Fair Value |  |  |
Cash and due from banks |  | 0 | 0
Interest-bearing deposits with banks |  | 0 | 0
Other short-term investments |  | 0 | 0
Total loans | [1] | 0 | 0
Demand Deposit Accounts |  | 55,785 | 58,476
Time Deposits |  | 6,682 | 8,391
Total deposits |  | 62,467 | 66,867
Medium- and long-term debt |  | 7,190 | 6,207
Short-term borrowings |  | 0 | 0
Credit-related financial instruments |  | 0 | 0
Level 3 | Estimated Fair Value |  |  |
Cash and due from banks |  | 0 | 0
Interest-bearing deposits with banks |  | 0 | 0
Other short-term investments |  | 0 | 0
Total loans | [1] | 50,412 | 50,633
Demand Deposit Accounts |  | 0 | 0
Time Deposits |  | 0 | 0
Total deposits |  | 0 | 0
Medium- and long-term debt |  | 0 | 0
Short-term borrowings |  | 0 | 0
Credit-related financial instruments |  | (63) | (72)
Nonrecurring |  |  |
Loans recorded at fair value |  | 82 | 44
Nonrecurring | Level 3 |  |  |
Total loans |  | $ 82 | $ 44
[1] | Included $82 million and $44 million of loans recorded at fair value on a nonrecurring basis at June 30, 2024 and December 31, 2023, respectively.

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- Definition Value of credit-related financial instruments included in accrued expenses and other liabilities, including unused commitments to extend credit, letters of credit and financial guarantees. Includes the allowance for credit losses on lending-related commitments and the current amortized value of the guarantee liability recognized at fair value at inception of the commitment. + References No definition available. + Details
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- Definition For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
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- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
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